/*
 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package com.sun.max.ins.gui;

import com.sun.cri.bytecode.*;
import com.sun.max.ins.*;

/**
 * A label for presenting a Bytecodes instruction mnemonic.
 */
public class BytecodeMnemonicLabel extends InspectorLabel {

    private int opcode;

    public BytecodeMnemonicLabel(Inspection inspection, int opcode) {
        super(inspection, "");
        this.opcode = opcode;
        redisplay();
    }

    public final void redisplay() {
        setFont(preference().style().bytecodeMnemonicFont());
        updateText();
    }

    public final void setValue(int opcode) {
        this.opcode = opcode;
        updateText();
    }

    private void updateText() {
        try {
            final String opName = Bytecodes.nameOf(opcode);
            setText(opName);
            setWrappedToolTipHtmlText("Opcode = " + intTo0xHex(opcode) + " (JVM)");
        } catch (IllegalArgumentException e) {
            setText(null);
            setToolTipText(null);
        }
    }

    public final void refresh(boolean force) {
        // no remote data to refresh
    }

}
